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Lakhmir Singh & Manjit Kaur - Chemistry

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Q. 143.7( 12 Votes )

What is meant by

Class 9th Lakhmir Singh & Manjit Kaur - Chemistry 2. Is Matter Around us Pure

Answer :

Metals are lustrous because of the presence of free electrons. ... These electrons can freely move about the surface of metal and are therefore called mobile electrons. Because of these mobile electrons, light falling on the surface of a metal is not transmitted but is reflected, and hence the metals appear lustrous.

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